How to fix DirectionalLight light source?

Question

JavaScript

Hello.
This is how the usual 3 faces of the cube "illuminated" look like

Well, when I rotate

Based on this, I found an 'article' where you can see that the light source rotates with the camera, but I could not find why, and how to fix it https://threejsfundamentals .org/threejs/lessons/en... , hope you can help me.

Maybe this is a solution to the problem, but I'm not sure https://coderoad.ru/15478093/%D0%A0%D0%B5%D0%B0%D0...

Here is the js

'use strict';

import * as THREE from './node_modules/three/build/three.module.js'; // three.js

import {
  OrbitControls
} from './node_modules/three/examples/jsm/controls/OrbitControls.js'; // камера

import {
  GUI
} from './node_modules/three/examples/jsm/libs/dat.gui.module.js'; // hitbox для камеры

// ***** основные переменные *****
const scene = new THREE.Scene();

const camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight);
camera.position.x = 5;
camera.position.y = 5;
camera.position.z = 10;

const renderer = new THREE.WebGLRenderer({
  antialias: true,
});
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// ***** камера *****
const controls = new OrbitControls(camera, renderer.domElement);
controls.update();

// ***** оси объектов *****
const axesHelper = new THREE.AxesHelper(2);
scene.add(axesHelper);

// ***** источники света *****
const light = new THREE.DirectionalLight();
light.position.set(-3, 2, 2);
scene.add(light);

// ***** hitbox источников света *****
const helper = new THREE.DirectionalLight(light);
scene.add(helper);

// *************** ОБЪЕКТЫ **************

// ***** машина *****
const geometryAuto = new THREE.BoxGeometry(2, 2, 2);
const materialAuto = new THREE.MeshLambertMaterial({
  color: '#fff',
});
const auto = new THREE.Mesh(geometryAuto, materialAuto);
scene.add(auto);

// ***** рендеринг *****
const animate = () => {
  requestAnimationFrame(animate);
  renderer.render(scene, camera);
};

animate();